Sex ratio of children born to mothers who had been exposed to x-rays in utero.
D001741:Black or African American; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008396:Maryland; D011247:Pregnancy; D011830:Radiation Effects; D012744:Sex Ratio / Q000528:radiation effects*; D014798:Vital Statistics